摘要
基于为生物油开发利用提供基础数据的目的，在等离子体流化床热解实验台上利用粉碎的玉米秸制取生物油，并对生物油的物理化学特性进行了分析研究。生物油的最高得油率为37％，显酸性，密度在1100-1200kg／m^3之间;动力粘度的总体趋势是随温度的升高而降低;灰分百分含量小于0．1％。同时使用色质联用仪（GC—MS）对生物油进行了组分分析，生物油的主要成分有乙酸、羟基丙酮、水、乙醛、呋哺等。高含水量和含氧量使得生物油热值低，容易发生反应，需要对生物油进行进一步的分析和改性才能用于高端技术。
In order to provide basic data for utilizing bio-oil, flash pyrolysis of pulverized corn stalk was conducted in a plasma heated fluidized bed reactor. The yield of bio-oil derived from corn stalk by pyrolysis is about 37%. The physical and chemical characteristics of the bio-oil were then determined. Bio-oil is acidic （pH ranges between 3.8-4.0） with density of 1100-1200 kg/m^3. The kinetic viscosity of bio-oil decreases quickly with the increase of temperature up to 27.5℃, and then decreases slowly. The ash content of bio-oil is less than 0. 1%. The chemical compositions of the bio-oil were analyzed by gas chromatography-mass spectrometry （GC--MC）. The major chemical compositions detected were acetic acid, 2-propanone, 1-hydroxy, water, acetaldehyde, hydroxy, furfural, etc. Because of high content of oxygen and water, the heat value is relatively low and poly- merization may react easily. The bio-oil derived from corn stalk must be analyzed further and upgraded before its application in advanced areas.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2006年第3期108-111,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家863计划资助项目(2001AA514030
2003AA514030)
国家自然科学基金资助(50376031
50576048)
关键词
玉米秸秆
热解
生物油
特性
流化床
corn stalk
pyrolysis
bio-oil
characteristics
fluidized bed
